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    Heavy Metal Remediation in Sludge Compost: Recent Progress

    Rongwei Xiong1,#, Xiufang Gao1,2,#,*, Xinyue Tu3, Yilin Mao1, Li Jiang1, Lu Zheng3, Yitong Du3

    Journal of Renewable Materials, Vol.10, No.2, pp. 469-486, 2022, DOI:10.32604/jrm.2022.017226

    Abstract The safe and efficient disposal and utilization of sludge are major issues to be solved in solid waste treatment and environmental protection due to the complex characteristics of sludge and the low rate of innocuous treatments. Composting is a process of decomposing organic matter and transformed low-molecular organic acids into high-molecular humus substances under the action of microorganisms. Although land-use after composting has become an important direction for sludge treatment, heavy metal pollution is still the bottleneck problem restricting land use of sludge compost. Adding zeolite, hydroxyapatite, and other conditioning agents to the composting process affects the concentration or form… More >

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